My iop is 21-21 goldman ton. and my cct =614-610. rnfl=0.20-0.19 c/d rat=0.22-0.24 linear c/d=0.46-0.49 is it normal for me? (26 years old) glaucoma

Not to worry: These are not pathologic numbers and the cct is somewhat protective. I am guessing you had an evaluation with this detail because there is glaucoma in your family. It is reasonable every two years or so to have your iop checked because 21 is the upper limits of normal, but please don't lose any sleep over this.

Periodic follow up: You probably have also done visual field tests, optical coherence tomography (oct), and optic nerve photos to use as a baseline for future comparison. Intraocular pressure can vary widely from day to day and during the day, and having a several readings over time can establish a meaningful baseline in case it is determined that a lower iop is needed in the future.